Back to results
US 5,512,210 AGranted
Far-red emitting phosphor for cathode ray tubes
OwnerEsther Sluzky, Mary A. Lemoine +1inventors
InventorsEsther Sluzky, Mary A. Lemoine, Kenneth R. Hesse
Life of this patent
Estimating the term…
Abstract
A far-red emitting phosphor for cathode ray tubes used in liquid crystal light valves comprises Y.sub.3-y Gd.sub.y Al.sub.5-x Ga.sub.x -O.sub.12 :A, where x ranges from 0 to 5, y ranges from 0 to 3, and A is selected from the group consisting of chromium, iron, vanadium, neodymium, dysprostum, cobalt, nickel, titanium or combination thereof.
Claims1
A far-red emitting phosphor having a composition consisting essentially of:
- Y.sub.3-y Gd.sub.y Al.sub.5-x Ga.sub.x O.sub.12 :A, wherein said phosphor is a polycrystalline phosphor which emits far-red electromagnetic radiation in response to an electron beam, and wherein said phosphor has a radiance versus input wavelength spectral response essentially matching the radiance versus input wavelength spectral response of a hydrogenated amorphous silicon photoconductor, and wherein x=2, y=0 and A is Chromium.
Dependencies are inferred from the claim text.